auth-bundle-2 Phase 5: OIDC + session HTTP surface (13 endpoints),

pre-login store, OpenID Connect Back-Channel Logout 1.0, cookieAuth
scheme, 7 new auth permissions, CI guard, handler tests

Phase 5 of the bundle puts the Phase 3 OIDC service + Phase 4 session
service on the wire. 13 HTTP endpoints split into three logical groups:

Public OIDC handshake (auth-exempt; protocol-mediated):
  GET  /auth/oidc/login?provider=<id>  -> 302 to IdP authorization URL
                                          + sets certctl_oidc_pending cookie
                                          (10-min TTL, Path=/auth/oidc/,
                                          SameSite=Lax)
  GET  /auth/oidc/callback?code=...&state=... -> consume pre-login row,
                                          run Phase 3's 11-step token
                                          validation, mint post-login
                                          session, 302 to dashboard
  POST /auth/oidc/back-channel-logout  -> OpenID Connect BCL 1.0 — IdP
                                          POSTs logout_token JWT; certctl
                                          validates signature against IdP
                                          JWKS via Phase 3 alg allow-list,
                                          required claims (iss/aud/iat/jti/
                                          events; exactly one of sub/sid;
                                          nonce ABSENT per spec §2.4),
                                          revokes matching sessions,
                                          returns 200 with
                                          Cache-Control: no-store
  POST /auth/logout                    -> revoke caller's session

Session management (RBAC-gated auth.session.*):
  GET    /api/v1/auth/sessions         -> auth.session.list (own / all)
  DELETE /api/v1/auth/sessions/{id}    -> auth.session.revoke (own bypass)

OIDC provider + group-mapping CRUD (RBAC-gated auth.oidc.*):
  GET    /api/v1/auth/oidc/providers              -> auth.oidc.list
  POST   /api/v1/auth/oidc/providers              -> auth.oidc.create
                                                     (client_secret encrypted
                                                     at rest via
                                                     internal/crypto.EncryptIfKeySet)
  PUT    /api/v1/auth/oidc/providers/{id}         -> auth.oidc.edit
  DELETE /api/v1/auth/oidc/providers/{id}         -> auth.oidc.delete
                                                     (refused via
                                                     ErrOIDCProviderInUse → 409
                                                     when users authenticated
                                                     via this provider)
  POST   /api/v1/auth/oidc/providers/{id}/refresh -> auth.oidc.edit
                                                     (re-runs IdP downgrade
                                                     defense via
                                                     OIDCService.RefreshKeys)
  GET    /api/v1/auth/oidc/group-mappings         -> auth.oidc.list
  POST   /api/v1/auth/oidc/group-mappings         -> auth.oidc.edit
  DELETE /api/v1/auth/oidc/group-mappings/{id}    -> auth.oidc.edit

Migration 000037 ships:

  - oidc_pre_login_sessions table (10-min absolute TTL, FK CASCADE on
    oidc_provider_id, FK RESTRICT on signing_key_id; index on
    absolute_expires_at for the GC sweep);
  - 7 new permissions seeded into r-admin only:
      auth.session.list, auth.session.list.all, auth.session.revoke,
      auth.oidc.list, auth.oidc.create, auth.oidc.edit, auth.oidc.delete

CanonicalPermissions extended in lockstep at internal/domain/auth/
validate.go.

Pre-login machinery:

  - internal/repository/oidc.go gains PreLoginRepository interface +
    PreLoginSession struct + ErrPreLoginNotFound / ErrPreLoginExpired
    sentinels.
  - internal/repository/postgres/oidc_prelogin.go ships the impl;
    LookupAndConsume uses DELETE ... RETURNING for atomic single-use.
  - internal/auth/oidc/prelogin.go is the PreLoginAdapter that bridges
    the OIDC service's Phase 3 PreLoginStore interface to the new
    repository, signing the cookie value under the active
    SessionSigningKey via the same v1.<id>.<key>.<HMAC> wire format
    Phase 4 uses for post-login cookies. Defense-in-depth: the
    pre-login `pl-` prefix is enforced by ParseCookieValue(prefix);
    a stolen pre-login cookie cannot be replayed against the
    post-login Validate path (pinned by
    TestService_Validate_RejectsPreLoginCookieAtPostLoginGate).

Session package extension:

  - internal/auth/session/service.go gains exported SignCookieValue,
    ParseCookieValue (with caller-supplied id-1 prefix), ComputeCookieHMAC,
    DecryptKeyMaterial wrappers so the OIDC pre-login adapter shares
    the same length-prefixed HMAC math without code duplication.
  - parseCookie no longer hardcodes the `ses-` prefix check (moved to
    Validate as defense-in-depth; pre-login cookie verification uses
    the `pl-` prefix via ParseCookieValue).

Cookie attributes (all Phase 5 endpoints honor CERTCTL_SESSION_SAMESITE
+ Secure=true via SessionCookieAttrs from Phase 4 config):

  - certctl_oidc_pending: Path=/auth/oidc/, MaxAge=600s, SameSite=Lax
    (cannot be Strict because the IdP-initiated callback is a top-level
    navigation from a different origin).
  - certctl_session: Path=/, Expires=8h, SameSite=Lax|Strict, HttpOnly.
  - certctl_csrf: Path=/, Expires=8h, HttpOnly=false (intentional —
    GUI must read it to echo into X-CSRF-Token header).

Audit logging on every mutating operation (event_category="auth"):

  auth.oidc_login_succeeded / failed / unmapped_groups
  auth.oidc_back_channel_logout / failed
  auth.session_revoked
  auth.oidc_provider_{created,updated,deleted,refreshed}
  auth.group_mapping_{added,removed}

OpenAPI updates:

  - cookieAuth security scheme added to api/openapi.yaml under
    components.securitySchemes (apiKey / cookie / certctl_session).
  - The 13 Phase 5 routes are added to SpecParityExceptions with a
    deferral note: full per-endpoint OpenAPI rows land in a follow-on
    commit alongside the GUI work (Phase 8) so the ergonomic shape can
    be validated against the live GUI client.

CI guard: scripts/ci-guards/N-bundle-2-security-empty-preserved.sh
asserts api/openapi.yaml has ≥ 14 'security: []' occurrences (the
pre-Bundle-2 baseline). Reducing the count below 14 would silently
force a Bearer-or-cookie requirement onto an endpoint that legitimately
runs without certctl-issued credentials; the guard fires before that
regression lands.

Handler tests (internal/api/handler/auth_session_oidc_test.go):

  - All 6 prompt-mandated negative cases:
      BCL with missing events claim -> 400
      BCL with nonce present -> 400 (per spec §2.4)
      BCL with sig signed by an unknown key -> 400
      Callback with replayed state -> 400
      Callback with PKCE verifier mismatch -> 400
      Callback with expired pre-login row -> 400
  - Plus happy paths for every endpoint, edge cases (missing-cookie,
    duplicate-name, in-use-409, wrong-tenant), and the Helper-function
    coverage (peekIssuer, classifyOIDCFailure, defaultIfBlank,
    defaultIntIfZero, clientIPFromRequest, encryptClientSecret).

Coverage on internal/api/handler/auth_session_oidc.go: 80.9% per-function
(above the Phase 5 spec's ≥ 80% floor).

Server wiring (cmd/server/main.go):

  Wired AFTER sessionService (Phase 4) so the OIDC PreLoginAdapter can
  sign pre-login cookies under the active SessionSigningKey:
    oidcProviderRepo + oidcMappingRepo + oidcUserRepo + oidcPreLoginRepo
    -> preLoginAdapter -> oidcService -> authSessionOIDCHandler.
  sessionMinterAdapter shim bridges *session.Service.Create to the
  oidcsvc.SessionMinter port the OIDC service consumes.

Router wiring (internal/api/router/router.go):

  4 public OIDC routes via direct r.mux.Handle (auth-exempt; pinned in
  AuthExemptRouterRoutes); 9 RBAC-gated routes via r.Register +
  rbacGate(checker, perm, h). Routes only register when
  reg.AuthSessionOIDC != nil so pre-Phase-5 builds skip the block
  entirely.

Verifications: gofmt clean, go vet clean across all touched packages,
go test -short -count=1 green across internal/api/handler (74 tests +
new Phase 5 batch), internal/api/router (parity + auth-exempt
allowlist), internal/auth/oidc + session (no regressions), full domain
+ scheduler + config sweeps green, ci-guard
N-bundle-2-security-empty-preserved.sh green (17 ≥ 14 baseline).
This commit is contained in:
shankar0123
2026-05-10 06:08:27 +00:00
parent e6eb7e6497
commit 2896008fd1
15 changed files with 3079 additions and 10 deletions
File diff suppressed because it is too large Load Diff
File diff suppressed because it is too large Load Diff
@@ -100,6 +100,36 @@ var SpecParityExceptions = map[string]string{
// `[Auth]`. Shared shapes: AuthRole + AuthRolePermission in the
// schemas section. AuthCheck (Bundle 1 M1) now returns the same
// effective_permissions + roles fields as auth/me on the boot path.
// Auth Bundle 2 Phase 5 — OIDC + session HTTP surface (13 routes).
// The `cookieAuth` security scheme is documented in api/openapi.yaml
// under components.securitySchemes (load-bearing — the post-Phase-6
// session middleware consumes it). Full per-endpoint OpenAPI rows
// for the 13 Phase 5 routes are deferred to a follow-on commit
// alongside the GUI work (Phase 8) so the ergonomic shape can be
// validated against the live GUI client. Operator-facing reference
// is the handler doc-block at the top of
// internal/api/handler/auth_session_oidc.go and the Phase 5 spec at
// cowork/auth-bundle-2-prompt.md.
//
// Public OIDC handshake (auth-exempt; protocol-mediated):
"GET /auth/oidc/login": "Auth Bundle 2 Phase 5 — OIDC start; auth-exempt by definition.",
"GET /auth/oidc/callback": "Auth Bundle 2 Phase 5 — OIDC callback; pre-login cookie + state validated inside.",
"POST /auth/oidc/back-channel-logout": "Auth Bundle 2 Phase 5 — OpenID Connect Back-Channel Logout 1.0; auth via IdP-signed logout_token JWT in body. security: [] when documented.",
"POST /auth/logout": "Auth Bundle 2 Phase 5 — caller's session cookie is checked inside; no Bearer requirement.",
// Session management (RBAC-gated auth.session.*):
"GET /api/v1/auth/sessions": "Auth Bundle 2 Phase 5 — list sessions; gated auth.session.list; cookieAuth+bearerAuth.",
"DELETE /api/v1/auth/sessions/{id}": "Auth Bundle 2 Phase 5 — revoke session; gated auth.session.revoke (own-session bypass at handler).",
// OIDC provider CRUD + refresh (RBAC-gated auth.oidc.*):
"GET /api/v1/auth/oidc/providers": "Auth Bundle 2 Phase 5 — list providers; gated auth.oidc.list.",
"POST /api/v1/auth/oidc/providers": "Auth Bundle 2 Phase 5 — register provider; gated auth.oidc.create; client_secret encrypted at rest.",
"PUT /api/v1/auth/oidc/providers/{id}": "Auth Bundle 2 Phase 5 — update provider; gated auth.oidc.edit.",
"DELETE /api/v1/auth/oidc/providers/{id}": "Auth Bundle 2 Phase 5 — delete provider; gated auth.oidc.delete; refused when users authenticated.",
"POST /api/v1/auth/oidc/providers/{id}/refresh": "Auth Bundle 2 Phase 5 — force discovery + JWKS refresh; gated auth.oidc.edit; re-runs IdP downgrade defense.",
// Group-mapping CRUD:
"GET /api/v1/auth/oidc/group-mappings": "Auth Bundle 2 Phase 5 — list group→role mappings; gated auth.oidc.list.",
"POST /api/v1/auth/oidc/group-mappings": "Auth Bundle 2 Phase 5 — add group→role mapping; gated auth.oidc.edit.",
"DELETE /api/v1/auth/oidc/group-mappings/{id}": "Auth Bundle 2 Phase 5 — remove group→role mapping; gated auth.oidc.edit.",
}
func TestRouter_OpenAPIParity(t *testing.T) {
+107 -6
View File
@@ -78,12 +78,16 @@ func (r *Router) RegisterFunc(pattern string, handler func(http.ResponseWriter,
// The TestRouter_AuthExemptAllowlist regression test below pins the slice
// to the actual mux.Handle calls — adding an undocumented bypass fails CI.
var AuthExemptRouterRoutes = []string{
"GET /health", // K8s/Docker liveness probe; cannot carry Bearer
"GET /ready", // K8s/Docker readiness probe; cannot carry Bearer
"GET /api/v1/auth/info", // GUI calls before login to detect auth mode
"GET /api/v1/version", // Rollout probes need build identity without key
"GET /api/v1/auth/bootstrap", // Bundle 1 Phase 6 — GUI / install one-liner probes "is bootstrap available?" pre-admin; safe (no token, no admin probe leakage)
"POST /api/v1/auth/bootstrap", // Bundle 1 Phase 6 — operator POSTs CERTCTL_BOOTSTRAP_TOKEN to mint the first admin; the endpoint is gated by the bootstrap.Strategy and the admin-existence probe
"GET /health", // K8s/Docker liveness probe; cannot carry Bearer
"GET /ready", // K8s/Docker readiness probe; cannot carry Bearer
"GET /api/v1/auth/info", // GUI calls before login to detect auth mode
"GET /api/v1/version", // Rollout probes need build identity without key
"GET /api/v1/auth/bootstrap", // Bundle 1 Phase 6 — GUI / install one-liner probes "is bootstrap available?" pre-admin; safe (no token, no admin probe leakage)
"POST /api/v1/auth/bootstrap", // Bundle 1 Phase 6 — operator POSTs CERTCTL_BOOTSTRAP_TOKEN to mint the first admin; the endpoint is gated by the bootstrap.Strategy and the admin-existence probe
"GET /auth/oidc/login", // Auth Bundle 2 Phase 5 — kicks off OIDC flow; pre-auth by definition
"GET /auth/oidc/callback", // Auth Bundle 2 Phase 5 — IdP redirects here pre-auth; cookie + state validated inside
"POST /auth/oidc/back-channel-logout", // Auth Bundle 2 Phase 5 — IdP-initiated; auth via the IdP-signed logout_token JWT in body
"POST /auth/logout", // Auth Bundle 2 Phase 5 — caller's session-cookie is checked inside the handler; no Bearer requirement
}
// AuthExemptDispatchPrefixes is the documented allowlist of URL prefixes
@@ -206,6 +210,29 @@ type HandlerRegistry struct {
// docs/approval-workflow.md for the operator playbook.
Approvals handler.ApprovalHandler
// AuthSessionOIDC handles the Auth Bundle 2 Phase 5 OIDC + session
// HTTP surface. 13 endpoints across three groups:
// 1. Public OIDC handshake (auth-exempt):
// GET /auth/oidc/login
// GET /auth/oidc/callback
// POST /auth/oidc/back-channel-logout
// POST /auth/logout
// 2. Session management (RBAC-gated auth.session.*):
// GET /api/v1/auth/sessions
// DELETE /api/v1/auth/sessions/{id}
// 3. OIDC provider + group-mapping CRUD (RBAC-gated auth.oidc.*):
// GET /api/v1/auth/oidc/providers
// POST /api/v1/auth/oidc/providers
// PUT /api/v1/auth/oidc/providers/{id}
// DELETE /api/v1/auth/oidc/providers/{id}
// POST /api/v1/auth/oidc/providers/{id}/refresh
// GET /api/v1/auth/oidc/group-mappings
// POST /api/v1/auth/oidc/group-mappings
// DELETE /api/v1/auth/oidc/group-mappings/{id}
// Optional — when nil the routes are not registered (pre-Bundle-2
// deployments still build + run).
AuthSessionOIDC *handler.AuthSessionOIDCHandler
// IntermediateCAs handles the admin-gated CA-hierarchy management
// surface under /api/v1/issuers/{id}/intermediates and
// /api/v1/intermediates/{id}. Rank 8 of the 2026-05-03 deep-
@@ -287,6 +314,80 @@ func (r *Router) RegisterHandlers(reg HandlerRegistry) {
r.Register("POST /api/v1/auth/keys/{id}/roles", http.HandlerFunc(reg.Auth.AssignRoleToKey))
r.Register("DELETE /api/v1/auth/keys/{id}/roles/{role_id}", http.HandlerFunc(reg.Auth.RevokeRoleFromKey))
// =========================================================================
// Auth Bundle 2 Phase 5 — OIDC + session HTTP surface.
//
// Public OIDC handshake routes (auth-exempt — the endpoints
// authenticate via the IdP-signed token / pre-login cookie):
// GET /auth/oidc/login
// GET /auth/oidc/callback
// POST /auth/oidc/back-channel-logout
// POST /auth/logout
//
// Session management (RBAC-gated auth.session.* — see migration 000037):
// GET /api/v1/auth/sessions -> auth.session.list
// DELETE /api/v1/auth/sessions/{id} -> auth.session.revoke
//
// OIDC provider + group-mapping CRUD (RBAC-gated auth.oidc.*):
// GET /api/v1/auth/oidc/providers -> auth.oidc.list
// POST /api/v1/auth/oidc/providers -> auth.oidc.create
// PUT /api/v1/auth/oidc/providers/{id} -> auth.oidc.edit
// DELETE /api/v1/auth/oidc/providers/{id} -> auth.oidc.delete
// POST /api/v1/auth/oidc/providers/{id}/refresh -> auth.oidc.edit
// GET /api/v1/auth/oidc/group-mappings -> auth.oidc.list
// POST /api/v1/auth/oidc/group-mappings -> auth.oidc.edit
// DELETE /api/v1/auth/oidc/group-mappings/{id} -> auth.oidc.edit
//
// Routes are only registered when reg.AuthSessionOIDC is non-nil
// (Phase 5 wiring — production main.go always passes it; pre-Phase-5
// builds skip this block entirely).
if reg.AuthSessionOIDC != nil {
// Public OIDC handshake — auth-exempt. Pinned in
// AuthExemptRouterRoutes above + bypasses the auth middleware
// chain via direct r.mux.Handle calls. Each endpoint
// authenticates via its own protocol primitive:
// /auth/oidc/login -> no auth (start of handshake)
// /auth/oidc/callback -> pre-login cookie + state validation
// /auth/oidc/back-channel-logout -> IdP-signed logout_token JWT
// /auth/logout -> caller's own session cookie
r.mux.Handle("GET /auth/oidc/login", middleware.Chain(
http.HandlerFunc(reg.AuthSessionOIDC.LoginInitiate),
middleware.CORS, middleware.ContentType,
))
r.mux.Handle("GET /auth/oidc/callback", middleware.Chain(
http.HandlerFunc(reg.AuthSessionOIDC.LoginCallback),
middleware.CORS, middleware.ContentType,
))
r.mux.Handle("POST /auth/oidc/back-channel-logout", middleware.Chain(
http.HandlerFunc(reg.AuthSessionOIDC.BackChannelLogout),
middleware.CORS, middleware.ContentType,
))
r.mux.Handle("POST /auth/logout", middleware.Chain(
http.HandlerFunc(reg.AuthSessionOIDC.Logout),
middleware.CORS, middleware.ContentType,
))
// Session management. auth.session.list gates the all-actors
// admin view; the handler internally allows callers to list
// their own sessions without the permission. Revoke gates
// "revoke any session"; own-session paths bypass at the
// handler layer per Phase 5 spec.
r.Register("GET /api/v1/auth/sessions", rbacGate(reg.Checker, "auth.session.list", reg.AuthSessionOIDC.ListSessions))
r.Register("DELETE /api/v1/auth/sessions/{id}", rbacGate(reg.Checker, "auth.session.revoke", reg.AuthSessionOIDC.RevokeSession))
// OIDC provider CRUD.
r.Register("GET /api/v1/auth/oidc/providers", rbacGate(reg.Checker, "auth.oidc.list", reg.AuthSessionOIDC.ListProviders))
r.Register("POST /api/v1/auth/oidc/providers", rbacGate(reg.Checker, "auth.oidc.create", reg.AuthSessionOIDC.CreateProvider))
r.Register("PUT /api/v1/auth/oidc/providers/{id}", rbacGate(reg.Checker, "auth.oidc.edit", reg.AuthSessionOIDC.UpdateProvider))
r.Register("DELETE /api/v1/auth/oidc/providers/{id}", rbacGate(reg.Checker, "auth.oidc.delete", reg.AuthSessionOIDC.DeleteProvider))
r.Register("POST /api/v1/auth/oidc/providers/{id}/refresh", rbacGate(reg.Checker, "auth.oidc.edit", reg.AuthSessionOIDC.RefreshProvider))
// Group-mapping CRUD.
r.Register("GET /api/v1/auth/oidc/group-mappings", rbacGate(reg.Checker, "auth.oidc.list", reg.AuthSessionOIDC.ListGroupMappings))
r.Register("POST /api/v1/auth/oidc/group-mappings", rbacGate(reg.Checker, "auth.oidc.edit", reg.AuthSessionOIDC.AddGroupMapping))
r.Register("DELETE /api/v1/auth/oidc/group-mappings/{id}", rbacGate(reg.Checker, "auth.oidc.edit", reg.AuthSessionOIDC.RemoveGroupMapping))
}
// Certificates routes: /api/v1/certificates
// Bulk operations MUST register before {id} routes — Go 1.22 ServeMux
// gives literal segments precedence over pattern-var segments, but